12776406 has 8 divisors (see below), whose sum is σ = 25552824. Its totient is φ = 4258800.

The previous prime is 12776383. The next prime is 12776411. The reversal of 12776406 is 60467721.

It is a sphenic number, since it is the product of 3 distinct primes.

12776406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064695 + ... + 1064706.

It is an arithmetic number, because the mean of its divisors is an integer number (3194103).

Almost surely, 2^12776406 is an apocalyptic number.

12776406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12776406 is a wasteful number, since it uses less digits than its factorization.

12776406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129406.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 12776406 is about 3574.4098813650. The cubic root of 12776406 is about 233.7776030011. Note that the first 3 decimals are identical.

The spelling of 12776406 in words is "twelve million, seven hundred seventy-six thousand, four hundred six".